import thenFS from "then-fs"
async function fn() {
  try {
    const s1 = await thenFS.readFile('./txt/a.txt', 'utf8')
    console.log(s1)
    const s2 = await thenFS.readFile('./txt/b.txt', 'utf8')
    console.log(s2)
    const s3 = await thenFS.readFile('./txt/c.txt', 'utf8')
    console.log(s3)
  } catch (e) {
    console.log(e.message)
  } finally {
    console.log('无论')
  }
}
fn()